/Engine/Source/Runtime/RenderCore/Public/RendererInterface.h
[FVirtualTextureProducerHandle](API\Runtime\RenderCore\FVirtualTextureProducerHandle) RegisterVirtualTextureProducer ( const [FVTProducerDescription](API\Runtime\RenderCore\FVTProducerDescription) & Desc, [IVirtualTexture](API\Runtime\RenderCore\IVirtualTexture) * Producer )